Improve codemod error state

[RomainLanz]

Hi! 👋🏻

Currently, when codemod cannot achieve its task, it throws an error that is displayed in the console and leaves the user without any other indication.

In this case, I have simply changed the location of those files.

I would expect the following:

• If I only move the file to some other place, I would expect to be able to configure the new path
• If the codemod cannot modify nor find the file, I would expect to display what has to be done in the CLI

Doing those modifications will ensure that the user will not feel lost if the codemod cannot achieve what was planned.